We look at the division of 28638883 by 390 
Our goal is to divide 28638883 by 390.

Advancing to step 1:
When dividing 2 by 390, we get 0 with a remainder of 2.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we subtract 0 from 2, we get 2.
Append the next digit (8) from the dividend to 2 and continue with: 28 / 390

Moving on to step 2:
390 can be fit into 28 0 times, resulting in a remainder of 28.
The next digit of our result is 0. 
Result so far: 0.0
Deduct 0 from 28 and we're left with 28.
Bring next digit (6) of the dividend behind the 28 and repeat the process: 286 / 390

Advancing to step 3:
390 can be fit into 286 0 times, resulting in a remainder of 286.
The next digit of our result is 0. 
Result so far: 0.0
The remainder is 286 after subtracting 0 from 286.
Bring next digit (3) of the dividend behind the 286 and repeat the process: 2863 / 390

On to step 4:
2863 divided by 390 is 7 with a remainder of 133.
Record the quotient 7 as the next digit in the result. 
Result so far: 7.0
The remainder is 133 after subtracting 2730 from 2863.
Bring next digit (8) of the dividend behind the 133 and repeat the process: 1338 / 390

Step 5:
If we divide 1338 by 390, we get 3 and a remainder of 168.
Put 3 as the next digit of the answer. 
Result so far: 73.0
Subtracting 1170 from 1338 leaves us with 168.
Append the next digit (8) from the dividend to 168 and continue with: 1688 / 390

Let's proceed to step 6:
1688 divided by 390 is 4 with a remainder of 128.
The number 4 becomes the next digit in our result. 
Result so far: 734.0
Subtract 1560 from 1688 to get 128.
Take the next digit (8) from the dividend and append it to 128, then repeat: 1288 / 390

On to step 7:
If we divide 1288 by 390, we get 3 and a remainder of 118.
The next digit of our result is 3. 
Result so far: 7343.0
The remainder is 118 after subtracting 1170 from 1288.
Take the next digit (3) from the dividend and append it to 118, then repeat: 1183 / 390

Step 8:
1183 divided by 390 is 3 with a remainder of 13.
The number 3 becomes the next digit in our result. 
Result so far: 73433.0
The remainder is 13 after subtracting 1170 from 1183.
Since there are no more digits in the dividend, we add a zero to the remainder making it 130, and continue the process.

Going ahead to step 9:
If we divide 130 by 390, we get 0 and a remainder of 130.
Put 0 as the next digit of the answer. 
Result so far: 73433.0
Deduct 0 from 130 and we're left with 130.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1300, and continue the process.

Going ahead to step 10:
1300 divided by 390 is 3 with a remainder of 130.
The number 3 becomes the next digit in our result. 
Result so far: 73433.03
If we subtract 1170 from 1300, we get 130.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1300, and continue the process.

Let's proceed to step 11:
1300 divided by 390 is 3 with a remainder of 130.
Record the quotient 3 as the next digit in the result. 
Result so far: 73433.033
Subtracting 1170 from 1300 leaves us with 130.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1300, and continue the process.

The quotient of the division is 73433.033, and the remainder is 0.013.